Kendo Grid JS error when using Grouping and Workflow Actions

We are currently using 4.0.2 and have encountered a JS error when a List (Kendo Grid) is used under certain conditions. Specifically, when you are using a View that has both Grouping enabled and you have a Workflow Actions column selected. The result is that the grid doesn't fully load - you cannot change pages and no Workflow Actions listed being two of the biggest issues.

The specific error is in rb-ui.js and reports under Chrome as "Uncaught TypeError: Cannot read property 'hasOwnProperty' of undefined" (Firefox will report it as something else). 

The error is within the Kendo Grid's dataBound function: the offending section of code begins with "$(".rbs-marker-wfActionsColumn")". It doesn't handle Grouped data correctly when accessing dataSource.view() — for example if you have 2 groups of 10 items on the page then for the 12th item it will attempt to use view[11] rather than view[1].items[1] as would be correct in this scenario.

I wrote a quick alteration to rb-ui.js to fix this, but am reluctant to deploy this to a Production environment. I am hoping to have an ETA of when I can expect this to be available in an update.